查询词典 tracking instrument

In this paper, the theory, algorithm, and experiment of automatic object detection and tracking are studied in depth. It is firstly pointed out that the essential of Mean Shift method is a special Newton-Gaussian method. A new method named Fast Mean Shift is established to stretch the conservative step of Mean Shift method. The convergence and validity of this new method are proved in theory. And it is also proved that the convergence speed of Fast Mean Shift is faster than that of Mean Shift. The contrast experiments of searching the maximum possibility density of random of data sets in plane and 3D space are done. The results show that this new method can reduce the iterations greatly. A new object tracking method based on Fast Mean Shift is built to improve the object tracking performance, which is shown in the face tracking experiment with the tennis sequence provided by the Ohio State University, and the car tracking experiment with the car sequence provided by Kalsruhe University. The face trcking experiment with highly noised images show that the object tracking method based on Fast Mean Shift has strong anti-jamming ability. A new fast color object detection technology based on characteristic color is established, which use characteristic color distribution to compute the characteristic color vector of any area in an image quickly. With the high performance search method, the fast object detection is achieved. At last, using object tracker based on Fast Mean Shift and color object detector based on characteristic color with the Kalman filter, PID controller, searial communication and other technologies, automatic object detection and tracking system with control system is built. The availability and anti-jamming ability of this system are verified by some object detection and tracking tests in different scenes.

本文对目标自动识别与跟踪进行了理论、计算、试验三方面的深入研究，主要包括：首次指出了目标跟踪技术中常用的均值迁移方法的本质为一种特殊的高斯-牛顿方法，改进了均值迁移方法步长取值保守的弱点，建立了快速均值迁移方法，证明了该方法的收敛性、有效性以及收敛速度优于均值迁移方法；进行了平面和3维随机分布数据集的最大概率密度搜索对比试验，试验结果表明，快速均值迁移方法大大减少了迭代次数；建立了基于快速均值迁移的目标跟踪方法，利用俄亥俄州立大学提供的乒乓球序列图像和卡斯鲁厄大学的汽车序列图像，对人脸和汽车目标跟踪性能分别进行了对比试验，并进行了高噪声人脸图像目标跟踪试验，结果表明，基于快速均值迁移的目标跟踪方法有效提高了目标跟踪性能，具有很强的抗干扰能力；建立了一种新型彩色目标自动识别方法，采用特征色彩分布函数实现了对任意图像区域特征色彩矢量的快速计算，建立了高效的搜索方法，实现了彩色目标的快速识别；将基于快速均值迁移方法的目标跟踪方法、基于特征色彩的目标识别方法与卡尔曼滤波、PID控制、串行通讯等技术结合，建立了带有控制系统的快速目标自动识别与跟踪系统，并在不同场景下进行了目标自动识别与跟踪试验，验证了快速目标自动识别与跟踪系统的有效性和抗干扰能力。

Management content: The company product mainly covers the microscope, the tool maker's microscope, the projecting apparatus, the sclerometer, the thickness gauge, the magnifying glass, the balance, the measuring instrument quantity meter, the mapping equipment, the metering equipment, to test the instrument, the electrochemistry instrument, the physical instrument, the analytic instrument, the biochemistry instrument, the non-destructive inspection, the medical instrument, the processing machinery and so on altogether 28 broad headings, 170 minor sort large-scale specialized precision instrument measuring appliance sale enterprises.

经营内容：公司产品主要涵盖显微镜、工具显微镜、投影仪、硬度计、测厚仪、放大镜、天平、量具量仪、测绘仪器、测量仪器、实验仪器、电化学仪器、物理仪器、分析仪器、生化仪器、无损检测、医疗器械、加工机械等共28大类，170余个小类的大型专业精密仪器仪表价格企业。

Analyse the technology principle of program tracking, step-in tracking, conical scan tracking and singleshot tracking, and contrast the advantage and disadvantage of them. Select program tracking and conical scan tracking considering performance and cost.

二、对程序跟踪、步进跟踪、圆锥扫描跟踪和单脉冲跟踪这四种自动跟踪技术的原理进行了具体的分析，并比较了它们各自的优缺点，从性价比的角度，选择了程序跟踪与圆锥扫描跟踪相结合的方式。

In plotting scene, the invention connects fiber-optic gyro(1) with full station instrument telescope(3) by adaptor(2), and make optical fibre gyro can follow full station instrument telescope simultaneously do 180 degree turning reel full station instrument cross shaft, respectively on two horizontal positions of east and west direction of gyro axis that differ by 180 degree; each horizontal position process 2 x 2 position gyro data acquisition on full station instrument perpendicular tray that differ by 180 degree; using formula to count out full station instrument collimation axis true azimuth, survey station meridian convergence angle, then can obtain full station instrument collimation axis grid azimuth, realize full station instrument orient.

基于光纤陀螺的全站仪组合定向方法是一种应用于测绘工作的基于光纤陀螺的全站仪组合定向方法，该方法在测绘现场，把光纤陀螺(1)通过连接装置(2)与全站仪望远镜(3)固连，使光纤陀螺(1)可随全站仪望远镜(3)绕全站仪横轴(4)同步做180度转动，分别在陀螺轴东西向相差180度两个水平位置，每个水平位置在全站仪竖盘相差180度的两个竖直位置进行2×2位置陀螺数据采集；利用公式算得全站仪视准轴真方位角、测站子午线收敛角，即可进一步获得全站仪视准轴坐标方位角，实现全站仪定向。

The Corporation product covering microscope, the tool maker's microscope, the projecting apparatus, the sclerometer, the thickness gauge, the magnifying glass, the balance, the measuring instrument quantity meter, the mapping equipment, the metering equipment, test the instrument, the electrochemistry instrument, the physical instrument, the analytic instrument, the biochemistry instrument, the non-destructive inspection, the medical instrument, to process the machinery altogether 18 broad headings, 170 minor sort.

公司产品涵盖显微镜、工具显微镜、投影仪、硬度计、测厚仪、放大镜、天平、量具量仪、测绘仪器、测量仪器、实验仪器、电化学仪器、物理仪器、分析仪器、生化仪器、无损检测、医疗器械、加工机械共18大类，170余个小类。

According to the author statistics shows that nearly 2000 poems about string instrument of Tang Dynasty in "" The Whole Poetry of Tang Dynasty "", it had reflected all respects of artistic development of string instrument of Tang Dynasty, embody a poet in the Tang Dynasty from describing that kinds of spiritual idea making the poet profound and expresse in the poem of the string instrument in Tang Dynasty, the classical, outstanding poems of the string instrument of Tang Dynasty,the description have worthful historical data value and aesthstic value, it is the rare important wealth on Chinese string instrument art and literature development history, it promote the development of string instrument art after Tang Dynasty, these 2000 poems of string instrument describe the study of Tang Dynasty and give us a lot of artistic value of written historical materials in Tang Dynasty.

据笔者统计：在《全唐诗》中约有2000多首描写唐代拨弦乐器的诗作，在这些诗作中集中体现了唐代拨弦乐器艺术发展的各个方面，从描写唐代拨弦乐器的诗作中折射出唐代诗人抒发的那种令人深邃的精神理念，这些经典、优秀的描写唐代拨弦乐器的诗作具有宝贵的史料价值和美学价值，是中国拨弦乐器艺术与文学发展史上不可多得的重要财富，对唐代以后拨弦乐器艺术的发展，产生了积极影响。这2000多首描写唐代拨弦乐器的诗作，是研究唐代拨弦乐器艺术价值的珍贵文字资料。

To dynamic scene visual tracking problem, this paper has researched the specific object tracking: face tracking. A structure and color based feature vector has been presented to modeling the face and used to real ize the satisfactory tracking result. To the active tracking problem, a toy car is selected as the research object.

对于动态场景下的视觉目标跟踪问题，文中结合人脸这一具体对象进行了研究，提出了一种基于颜色信息，结构信息等的特征量定义方法较好的实现了人脸跟踪，对于主动视觉目标跟踪问题，针对小车这一具体研究对象展开研究，文中研究了系统的具体构成及其中的控制方法。

TV photoelectric theodolites made up of optics, machine, electron and computer is a complex tracking and measuring instrument. TV photoelectric theodolites used in especial proving ground is a new kind of photoelectric tracking and measuring instrument. Tracking precision is a main parameter.

电视光电经纬仪是集光、机、电与计算机应用技术于一体的大型复杂测量系统，它是广泛用于特种试验场的一种新型光电跟踪测量设备，跟踪精度是其最重要的的技术指标之一。

The design of the seam tracking sensor is the key work in the realization of the welding automatization. A novel touch photoelectric sensor for seam tracking was designed on the base of getting over the shortcoming of non-touch seam tracking sensor and using the principle of the photovoltaic translation. The idler pulley can touch the seam closely, then the sensor can realize the auto-tracking by the oriented function of the groove. If the offset of the idler pulley location appear, the sensor can change the offset to the voltage using the cell of the photovoltaic translation and the cell of signal processing.

焊缝跟踪传感器的设计是焊接自动化实现过程的重要环节，在此克服非接触式焊接跟踪传感器易受干扰的缺点，利用光电转化的原理，设计了一种新颖的接触式光电焊缝跟踪传感器，该传感器利用特制导轮与坡口紧密接触，依靠坡口的机械导向作用实现焊缝自动跟踪，当导轮位置发生偏移，利用光电转换单元以及信号处理单元，可将偏移位移转化为模拟电压量。

In order to solve the problem of path tracking for 3-DOF mobile robot with two drivable and steerable wheels, The path-tracking control algorithm is investigated via fuzzy control technique which realizesd independent tracking of position between orientation of mobile robot and enhances the real-time characteristics of tracking control.

针对具有两个可操舵驱动轮的 3自由度移动机器人的轨迹跟踪问题，利用模糊控制技术设计了路径跟踪控制器，实现了移动机器人的位置和方位的独立跟踪，同时提高了跟踪控制的实时性。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。